Figure 1From: Bench-to-bedside review: Oxygen as a drugA multiplace walk-in hyperbaric chamber. The treatment pressure is attained by compressing the ambient air in the chamber. Patients are exposed to oxygen or other gas mixtures at the same pressure via masks or hoods. Many hyperbaric facilities are equipped for providing a full-scale critical care environment, including mechanical ventilation and state-of-the-art monitoring.Back to article page